CN105669061A - High-iron phosphoaluminate cement - Google Patents
High-iron phosphoaluminate cement Download PDFInfo
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- CN105669061A CN105669061A CN201410666566.8A CN201410666566A CN105669061A CN 105669061 A CN105669061 A CN 105669061A CN 201410666566 A CN201410666566 A CN 201410666566A CN 105669061 A CN105669061 A CN 105669061A
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Abstract
The invention relates to the technical field of cement materials, and especially relates to a high-iron phosphoaluminate cement. The cement comprises the components of Of SiO2, impurity Al2O3, Fe2O3, CaO, P2O5, and impurities. The cement comprises, by mass, 20 parts of SiO2, 38 parts of Al2O3, 28 parts of Fe2O3, 18 parts of CaO, 56 parts of P2O5, and 0.08 parts of the balance which is Na2O and K2O impurities. The cement provided by the invention has the advantages of low sintering temperature, low cost, better mechanical properties and better erosion resistance.
Description
Technical field
The invention belongs to the technical field of cement material, particularly to the high ferro phosphor aluminate cement of a kind of high calcium aluminoferrite content.
Background technology
Phosphor aluminate cement by raw material through dispensing, mixing, grinding, the preparation process such as burn till and obtain, its mineral composition is phosphorus calcium aluminate, calcium aluminate solid solution, calcium phosphate solid solution and segment glass body. The excellent mechanical properties such as phosphor aluminate cement has soon firmly, morning is strong, high-strength, cement slurry has excellent durability, excellent frost resistance, anti-carbonization, resist chemical, the abilities such as impervious and steel corrosion-resistance so that this cement has in salvaging, ocean engineering etc. and has been widely used and market prospect, it is possible to substitutes in some aspects and improves existing Binder Materials. But relatively costly due to raw material etc. so that the cost of this cement is much higher than Portland cement, limit the popularization and application of this cement. Wherein it is primarily present following reason: one is that manufacture of cement needs to consume a large amount of expensive bauxites; Two is the firing temperature higher (1370 DEG C ~ 1410 DEG C) of this cement; And this cement burns till and need to adopt composite mineralizer (MgO(1% ~ 7%), Fe2O3(1% ~ 8%)), in this composite mineralizer, expensive MgO occupies considerable proportion, further increases the cost of this cement.
Summary of the invention
In order to solve the above-mentioned technical problem existed in prior art, it is an object of the invention to provide a kind of high ferro phosphor aluminate cement, this material firing temperature is low, and cost is low and has better mechanical property and erosion-resisting characteristics.
In order to solve above-mentioned technical problem and realize above-mentioned purpose, the present invention adopts the following technical scheme that:
Containing following components: SiO2, impurity A l2O3、Fe2O3、CaO、P2O5, impurity, mass fraction is SiO respectively220 parts, Al2O338 parts, Fe2O328 parts, CaO18 part, P2O556 parts, surplus 0.08 part is Na2O、K2O impurity.
The invention has the beneficial effects as follows have relatively low firing temperature than phosphor aluminate cement, cost is low and has better mechanical property and erosion-resisting characteristics.
Detailed description of the inventionBelow in conjunction with specific embodiment, technical scheme is further elaborated, but embodiments of the present invention are not limited to this.
A kind of high ferro phosphor aluminate cement, containing following components: SiO2, impurity A l2O3、Fe2O3、CaO、P2O5, impurity, mass fraction is SiO respectively220 parts, Al2O338 parts, Fe2O328 parts, CaO18 part, P2O556 parts, surplus 0.08 part is Na2O、K2O impurity.
Owing to phosphor aluminate cement hydrated product is mainly hydroxyapatite, aquation aluminophosphates gel and hydrated phosphate gel. Hydrated product can be cross-linked to form between simultaneous aquation aluminophosphates gel and hydrated phosphate gel the network structure of densification in length and breadth, improve the physical property of PALC, effectively stop the intrusion of extraneous ion.Therefore, the sulphate-corrosion resistance of phosphor aluminate cement relatively can have greater advantage by portland cement. The introducing of calcium aluminoferrite mineral makes this cement except having good anti-erosion and scour resistance. Meanwhile, research finds to form more than 40% when the content of calcium aluminoferrite accounts for grog, and this cement has the performance that some are special, and such as microdilatancy and rub resistance etc., this makes this cement be especially suited for use road, airfield rapid repair and ocean engineering etc.
Cement material of the present invention has relatively low firing temperature, and cost is low and has better mechanical property and erosion-resisting characteristics.
Claims (1)
1. a high ferro phosphor aluminate cement, it is characterised in that: containing following components: SiO2, impurity A l2O3、Fe2O3、CaO、P2O5, impurity, mass fraction is SiO respectively220 parts, Al2O338 parts, Fe2O328 parts, CaO18 part, P2O556 parts, surplus 0.08 part is Na2O、K2O impurity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410666566.8A CN105669061A (en) | 2014-11-20 | 2014-11-20 | High-iron phosphoaluminate cement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410666566.8A CN105669061A (en) | 2014-11-20 | 2014-11-20 | High-iron phosphoaluminate cement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105669061A true CN105669061A (en) | 2016-06-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410666566.8A Pending CN105669061A (en) | 2014-11-20 | 2014-11-20 | High-iron phosphoaluminate cement |
Country Status (1)
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| CN (1) | CN105669061A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107986655A (en) * | 2017-12-25 | 2018-05-04 | 济南大学 | A kind of phosphor aluminate cement is modified sulphoaluminate cement clinker |
| CN108069632A (en) * | 2017-12-25 | 2018-05-25 | 济南大学 | A kind of Anti-erosion phosphor aluminate cement base gel rubber material for being suitable for extra large work engineering |
-
2014
- 2014-11-20 CN CN201410666566.8A patent/CN105669061A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107986655A (en) * | 2017-12-25 | 2018-05-04 | 济南大学 | A kind of phosphor aluminate cement is modified sulphoaluminate cement clinker |
| CN108069632A (en) * | 2017-12-25 | 2018-05-25 | 济南大学 | A kind of Anti-erosion phosphor aluminate cement base gel rubber material for being suitable for extra large work engineering |
| CN107986655B (en) * | 2017-12-25 | 2020-08-25 | 济南大学 | Phosphoaluminate cement modified sulphoaluminate cement clinker |
| CN108069632B (en) * | 2017-12-25 | 2020-10-30 | 济南大学 | Erosion-resistant phosphoaluminate cement-based gel material suitable for marine engineering |
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160615 |